K-FUNCTION

作品数:7被引量:44H指数:4
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相关领域:天文地球生物学更多>>
相关作者:张东菊邹欣庆左平更多>>
相关机构:南京大学更多>>
相关期刊:《Journal of Plant Ecology》《生态学报》《Natural Resources》《Open Journal of Ecology》更多>>
相关基金:国家海洋公益性行业科研专项国家自然科学基金国家重点基础研究发展计划更多>>
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Location patterns of urban industry in Shanghai and implications for sustainability被引量:8
《Journal of Geographical Sciences》2017年第7期857-878,共22页CAO Weidong LI Yingying CHENG Jianquan Steven MILLINGTON 
Foundation: National Natural Science Foundation of China, No.41571124
China's economy has undergone rapid transition and industrial restructuring. The term "urban industry" describes a particular type of industry within Chinese cities experiencing restructuring. Given the high percen...
关键词:urban industry industrial location pattern co-location quotient K-FUNCTION SHANGHAI 
GIS-based spatial analysis of urban traffic accidents: Case study in Mashhad, Iran被引量:8
《Journal of Traffic and Transportation Engineering(English Edition)》2017年第3期290-299,共10页Gholam Ali Shafabakhsh Afshin Famili Mohammad Sadegh Bahadori 
There is a growing concern in traffic accident rate in recent years. Using Mashhad city (Iran second populous city) traffic accident records as case study, this paper applied the combi- nation of geo-information tec...
关键词:Traffic accidents HOTSPOTS Kernel density analysis Nearest neighbor K-FUNCTION 
Spatio-Temporal Patterns of Wildlife Road Mortality in Golestan National Park-North East of Iran
《Open Journal of Ecology》2016年第6期312-324,共13页Vahed Dehghani Kazemi Hamidreza Jafari Ahmadreza Yavari 
Nowadays, wildlife road mortality is acknowledged as a main source of threatening long-term survival of wildlife. This paper as the first to analysis wild life vehicle collisions in Iran, aims to reconstruct and inter...
关键词:Golestan National Park Wildlife Vehicle Collision (WVC) Spatio-Temporal Pattern K-FUNCTION 
Historic distribution and driving factors of human-caused fires in the Chinese boreal forest between 1972 and 2005被引量:12
《Journal of Plant Ecology》2015年第5期480-490,共11页Futao Guo John L.Innes Guangyu Wang Xiangqing Ma Long Sun Haiqing Hu Zhangwen Su 
Asia-Pacific Forests Net(APFNET/2010/FPF/001).
Aims The pattern and driving factors of forest fires are of interest for fire occurrence prediction and forest fire management.The aims of the study were:(i)to describe the history of human-caused fires by season and ...
关键词:anthropogenic fire spatial distribution K-FUNCTION Kernel intensity estimation boreal forest logistic regression 
基于加权Ripley's K-function的多尺度景观格局分析——以江苏盐城滨海湿地为例被引量:13
《生态学报》2015年第8期2703-2711,共9页张东菊 左平 邹欣庆 
科技部重点支撑项目(2013CB956503);国家海洋局2010年海洋公益性行业科研专项(201005006)资助
以1987,1992,1997,2002,2007年的遥感影像为例,首次尝试使用加权Ripley's K-function的多尺度格局分析方法,计算了20年来景观异质性在江苏盐城滨海湿地的时间变化和空间分布趋势。通过对研究区的样带划分以及景观类型的点状化处理,建立...
关键词:盐城滨海湿地 景观空间格局 多尺度空间聚集分析 加权Ripley’s K-FUNCTION 空间特征尺度 空间分布强度 
Small-Scale Spatial Patterns of <i>Copernicia alba</i>Morong near Bahia Negra, Paraguay
《Natural Resources》2013年第5期369-377,共9页Michelle E. Cisz Michael J. Falkowski Blair Orr 
We assessed the spatial distribution of Copernicia alba Morong. In the study area, a lowland palm savanna floodplain, C. alba is the only overstory species. We hypothesized C. alba would be randomly distributed within...
关键词:Ripley’s K-FUNCTION First Order Analysis Floodplain Fire CHACO Monotypic Stands Disturbance Ecol-ogy Population Dynamics 
Spatio-temporal point pattern analysis on Wenchuan strong earthquake被引量:3
《Earthquake Science》2009年第3期231-237,共7页Peijian Shi Jie Liu Zhen Yang 
supported by the Key Project of Chinese National Programs for Fun-damental Research and Development (973 program) (2008CB425704)
For exploring the aftershock occurrence process of the 2008 Wenchuan strong earthquake, the spatio-temporal point pattern analysis method is employed to study the sequences of aflershocks with magnitude M≥4.0, M≥4.5...
关键词:Wenchuan earthquake completely spatial randomness spatio-temporal point pattern K-FUNCTION 
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